Professor Se Jeong attends a biotech conference, only to witness it spiral into catastrophe when a rapidly mutating virus is unleashed. As the outbreak spreads and the infected begin to transform, authorities seal off the entire facility.
Colony (2026) is a South Korean science-fiction horror and zombie thriller movie directed by Yeon Sang-ho. The story follows Professor Se-jeong, a biotechnology expert who attends a conference at a building where a terrifying outbreak suddenly begins after a rapidly mutating virus is unleashed. As infected individuals undergo horrifying transformations, authorities seal off the entire facility, trapping Se-jeong and numerous other people inside with no easy way to escape. With the infection spreading rapidly and the infected becoming increasingly unpredictable, Se-jeong joins forces with a small group of survivors to fight for their lives. Using her scientific knowledge, she attempts to understand the mysterious virus and the frightening changes occurring in the infected. Meanwhile, the survivors must overcome fear, mistrust and dangerous encounters as they search for a way out of the quarantined building. As the outbreak grows more deadly, their struggle for survival turns into a desperate battle against an evolving threat that could extend far beyond the facility.